.md-loading {
  width: 128px;
  height: 128px;
}
.md-loading .spinner {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 0.3em solid;
  border-color: rgba(0, 0, 0, 0);
  border-left-color: #ffffff;
  border-right-color: #ffffff;
}
